Cutter blade for reaper machine



FIG. 1 is a bottom right perspective view of a cutter blade for a reaper machine illustrating our new design;

FIG. 2 is a left elevational view;

FIG. 3 is a front elevational view;

FIG. 4 is a black elevational view;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view. 

The ornamental design for a cutter blade for reaper machine, as shown and described. 